Lygodium 483203 196803776 2008-03-08T16:54:59Z Eubot 231599 Removed taxobox colour. See [[User:Eubot/Removing colours from taxoboxen]]. {{Taxobox | name = ''Lygodium'' | image = Climbing_fern.jpg | image_width = 240px | image_caption = ''Lygodium japonicum'' | regnum = [[Plant]]ae | divisio = [[Pteridophyta]] | classis = [[Pteridopsida]] | ordo = [[Schizaeales]] | familia = '''Lygodiaceae''' | familia_authority = [[Karel Presl|C.Presl]] | genus = ''Lygodium'' | genus_authority = [[Olof Swartz|Sw.]] | subdivision_ranks = Species | subdivision = See text }} '''''Lygodium''''' ('''climbing fern''') is a genus of about 40 species of [[fern]]s, native to tropical regions across the world, with a few temperate species in eastern [[Asia]] and eastern [[North America]]. It is the sole genus in the family '''Lygodiaceae''', though included in the family [[Schizaeaceae]] by some botanists. They are unusual in that the rachis, or midrib, of the [[frond]] is thin, flexible, and long, the frond [[vernation|unrolling]] with indeterminate growth and the rachis twining around supports, so that each frond forms a distinct [[vine]]. The fronds may be from 3-12 m long, depending on the species. Lygodium is now considered a very problematic invasive species in the southern U.S. Populations of Lygodium have increased more than 12-fold over the past decade--as can be seen on [[IFAS]]'s [http://biscuitgis.com/srfer/ SRFer Mapserver]. ;Selected species *''[[Lygodium articulatum]]'' – Tropical southeast Asia. *''[[Lygodium circinatum]]'' – Tropical Asia and Australasia. *''[[Lygodium conforme]]'' – China. *''[[Lygodium cubense]]'' – Cuba, Hispaniola. *''[[Lygodium digitatum]]'' – China. *''[[Lygodium flexuosum]]'' – Southern China south to northern Australasia. *''[[Lygodium japonicum]]'' – Japanese climbing fern. Eastern Asia south to northern Australia. *''[[Lygodium microphyllum]]'' – Old World tropics. *''[[Lygodium microstachyum]]'' – China. *''[[Lygodium palmatum]]'' – American climbing fern. Eastern United States (rare, confined to acid soils). *''[[Lygodium polystachyum]]'' – China. *''[[Lygodium reticulatum]]'' – Australia, Polynesia. *''[[Lygodium salicifolium]]'' – Southern China south to northern Australasia. *''[[Lygodium scandens]]'' – Southern China south to northern Australia. *''[[Lygodium subareolatum]]'' – China. *''[[Lygodium trifurcatum]]'' – Tropical southeast Asia south to northern Australasia. *''[[Lygodium volubile]]'' – Northern South America, Central America, Caribbean. *''[[Lygodium versteeghii]]'' – Tropical southeast Asia south to northern Australasia. *''[[Lygodium yunnanense]]'' – Southern China. ==References== {{commons|Category:Lygodium|Lygodium}} *[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=119176 Flora of North America: ''Lygodium''] *{{APNI | name = Lygodium Sw. | id = 46269}} *[http://www.efloras.org/browse.aspx?flora_id=3&start_taxon_id=119176 Flora of China: ''Lygodium'' species list] [[Category:Pteridophyta]] [[es:Lygodiaceae]] [[id:Hata]] [[nl:Lygodium]] [[ja:カニクサ]]